用抑扬格律写的诗句的英文

i saw three ships come sailing by. iambics

• 用:    40分钟跑完全程 run the c ...
• 抑扬:    rise and fall; mod ...
• 格律:    rules and forms of ...
• 写:    write
• 的:    4次方是 The fourth po ...
• 诗句:    verse; line